Swapping from 2.94 to 3.73 gears (4WD)

6905 Views 15 Replies 4 Participants Last post by REDRUM, May 5, 2016

SouthernLion

Discussion Starter · May 2, 2016

So I've read quite a bit on this today. Going to be going with a 6" PC lift soon. Will probably run the Toyo Open Country A/T II's in 35x12.50R20 (34.5"). I'm currently running those same tire in a 305/55R20 (33.2") flavor.

I am a 4wd and have the wimpy 2.94 gears. (I learned my lesson that the Big Tow package would have been worth the extra money at the time.) With going to 35's I have read everyone recommends going to 3.73 gears (for the most part).

I've been nosing around 4x4parts.com and want to know if these two things are what I need for the swap, and what else I will need to do for a successful swap? Thanks.

Drive Train - Ring & Pinion Sets - 3.73 Ring & Pinion - Titan

CURRENT 2018 Charcoal CC SL Midnight Edition
Interior: Weathertech Floor Mats, 5% Tint All Around, 50% Tint on Windshield
Misc: Rigid Front Grille w/ Rigid Midnight 20" Light Bar, Tinted Tail Lights, UnderCover Ultra Flex Tonneau Cover, 50 cal Stubby Antenna

SOLD 2017 Silver CC Pro4x

SOLD 2015 White CC SV 4x4
Suspension/Wheels & Tires: ProComp 6" Lift, Icon Bracket Lift Coilovers, Icon Rear Shocks, Fuel Octane 20x9 +1 offset, Toyo Open Country M/T 35's, Dirt King Heimed UCA's, PRG Ext Sway Bar End Links, CJD Racing Traction Bars
Performance: AirRaid MXP, Titanium Ceramic Coated JBA LT's, Cajun Catted Bpipes, Cajun Custom Catback, Borla XR1 40944, Uprev, 3.73 Front & Rear Gears
Interior: Weathertech Floor Mats, 20% 3M Tinted Windows
Misc: Northern Tool Black Toolbox, Royalty Core Grille, 50 cal Stubby Antenna

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REDRUM

· #12 · May 3, 2016

better rpms/ gas?

CVTitan05 said:
I went 4.11s because of a deal i stumbled upon that i couldn't pass up, and am super happy i didnt go with 3.73s, its well worth it IMO.

What you posted is correct, other than you will need master install kits for both front and rear. also the front and the rear gears require a specific pinion flange, so make sure you have them on your truck already, and if not you will need to purchase them as well.

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REDRUM

· #16 · May 5, 2016

sounds like I need to swap for 373 or 410. Other than the occasional trailer load to the dump or hauling one of the other toys around seems could benefit the mpg. no cruise option to worry about with my S package lol.

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